Instrumentation and control engineering

Instrumentation and control engineering

what is instrumentation and control engineering
Instrumentation and control engineering is the study of process variable measurements and controllers. Instrumentation and Control Engineering is a combination of two disciplines Instrumentation Engineering and Control Engineering. Instrumentation and control engineering consisting of field instrument (PLC, DCS, SCADA, sensor, Actuator etc.), control system, automatic equipment or equipment used in industries. Instrumentation & control engineering basically aims to automate industry and improve product quality, stability, reliability and reduce labor costs or human error. Also ICE deals with safety systems like FAS (Fire Alarm System), SIS (Safety Instrumented System), ESD System (Emergency Shutdown System) in power plant. Basically, i&c engineer jobs are available in oil and gas, petrochemical, biomedical, food and beverage, manufacturing industries. Basically the job of Instrumentation and Control Engineer is to design and control the system, maintain the system and minimize the errors in the system and troubleshoot and solve the problems. Instrumentation is basically measurement and control. It measures system parameters that are used to process or control the system. Essentially instrumentation engineers process temperature, pressure, flow and level measurements.
Instrumentation is a combination or combination of electrical, electronics and mechanical essentially various types of mechanical machines used to automate using electrical control panels and programs that calculate and control machine tasks.
Instrumentation engineering is the study of measuring and controlling process variables in a manufacturing or production field. Control engineering, also known as control systems engineering, is the study of control theory for designing systems with desired behavior.

Instrumentation and control engineers work on systems and devices listed below

Programmable  Logic Controllers (PLC)
Distributed Control System (DSC)
Safety Instrumented systems (SIS)
Flow Measuring Devices
Level Measuring Devices
Temperature Measuring Devices
Pressure Measuring Devices
Vibration Measuring Devices
Fair and Gas Detectors 
Control Valves 
Different equipment listed in this list are used according to the type of industry like oil industry, gas industry, cement plant, chemical plant, power plant.

Instrumentation and control engineer measured parameters is 

  1. Pressure Measurement
  2. Flow Measurement
  3. Temperature Measurement
  4. Level Measurement
  5. Density Measurement
  6. Viscosity Measurement
  7. Radiation Measurement
  8. Current Measurement
  9. Voltage Measurement
  10. Inductance Measurement 
  11. Capacitance Measurement 
  12. Frequency Measurement
  13. Resistivity Measurement
  14. Conductivity Measurement

Documents and drawings used for instrumentation engineers


  • Instrument index.
  • Instrument data sheet
  • Cable schedule
  • Bill of material.


  • JB & Instrumentation location drawing.
  • GA Drawings.
  • Piping and instrument drawing (P&ID drawing).
  • Hook up drawing

Future for Instrumentation and Control Graduate

I&C engineers are basically responsible for plant and system design, construction and maintenance of large systems in plants and industries. In the coming year ICE engineers will develop fully automated industries to reduce human effort and improve product quality and final product efficiency. It will also develop new control systems with greater efficiency.

Instrumentation and control engineering job opportunities

Instrumentation and Control Engineering is one of the newer and less popular engineering branches in India, hence the number of graduates entering the market every year. With this advantage, graduates are provided with really good job opportunities in Government as well as private organizations in robotics, electrical, automation, mechanical as well as electronics fields.

Instrumentation and control engineering job Salary

Salaries, especially starting packages, also depend on the companies employing graduates. It depends on the type of job you want to do as well as the college you graduated from. Fresh graduates can expect a salary package of Rs. 3.5 lakh to Rs. 5 lakh per annum. Multi-national companies and government organizations offer relatively better packages than all other companies.

Instrumentation and control engineering popular areas of study

  • Electronic Devices and Circuits
  • Transducers and Telemetry
  • Control System Components
  • Mechanics of Solids
  • Microprocessor and Assembly Level Programming
  • Process Instrumentation
  • Electronic and Pneumatic Instrumentation
  • Industrial Electronics and Control

Some good options for Post-Graduation (PG)/Masters after Bachelor in Instrumentation and Control Engineering

  1. ME (Master of Engineering) in Process Control & Instrumentation
  2. ME in Applied Instrumentation
  3. ME in Instrumentation Engineering
  4. (Master of Technology) in Instrumentation & Control Engineering
  5. in Process Control & Instrumentation
  6. in Instrumentation
  7. in Bio-Medical Signal Processing & Instrumentation
  8. in Applied Electronics & Instrumentation Engineering
  9. in Control Systems & Instrumentation
  10. in Process Instrumentation
  11. MS (Master of Science) in Electronics & Instrumentation
  12. MS in Instrumentation Technology
  13. MS in Bioelectronics & Instrumentation

Various courses are available to  Instrumentation and Control Engineering?

Basically Instrumentation Engineer is available for various jobs in different industries like Field Engineer, Project Engineer, PLC Programmer, PLC Operator, SCADA Operator, Instrumentation Technician, Automation Engineer etc.
It is a basic course of Instrumentation and Control Engineering
  • PLC
  • HMI
  • DCS

Various types of jobs are available to Instrumentation and Control Engineers

  1. Field Engineer
  2. Systems Engineer
  3. Project Engineer
  4. PLC Programmer
  5. PLC operator
  6. SCADA operator
  7. Instrumentation Technician
  8. Automation Engineer etc.

Instrumentation and control engineering tools

Detailed Classification of   Instrumentation And Control Engineering Tools 

Instrumentation and control system

1. Control and safety system

Integrated control and safety systems (ICSS)
Control Systems 
For Critical Equipment
  •  Valves Remote Control Systems (VRCS)
  •  Integrated system (used to monitor vibration of rotating equipment)
  • Tank  Gauging System
  • Structural Monitoring Systems

2. Analyzers 

  • Multi wave Photometers Analyzer 
  • PH and Conductivity Analyzer
  • Total Organic carbon Analyzer (TOC)
  • Oil-in-Water Analyzer
  • Water Quality 

  • Multi wave Photometers Analyzer
  • Oxygen Analyzer
  • Process Gas Chromatograph 
  • Flue Gas Analyzer
  • Moisture Analyzer
  • Mass Spectrometer Analyzer 
  • Tunable Diode Analyzer 
  • Dust Analyzer
  • Continues Emissions Monitoring System (CEMS)
  • Air Quality Analyzer

3. Detectors

  • Combustion Flame Detectors
  • Fire Flame Detectors
  • Heat and Smoke Detectors
  • Lead Detection Systems
    • Vessel 
    • Pipeline
  • Corrosion Meters
  • Very Early Smoke Detection Apparatus (VESDA)

4. Flow measuring devices 

5. Level measuring devices

  • Level Gauges 
  • Ultrasonic Transmitter
  • Radar Transmitter
  • Nuclear Transmitter
  • Displacer Transmitter
  • Radiofrequency type Transmitter
  • Magneto Resistor 
  • Level profiler or Interface
  • Microwave Absorption

6. Density and viscosity measuring devices

  • Inertial Density Measuring Devices (Coriolis)
  • Oscillating Piston
  • Resonance vibration
  • Other Density Measuring Devices

7. Pressure measuring devices

  • Pressure or Differential Pressure Transmitters
  • Pressure or Differential Pressure Gauges
  • Pressure regulators 

8. Temperature measuring devices

9. Switches 

10. Instrumentation bulk materials

  • Instrumentation Cables (Armored and Unarmored)
  • Heating Cable for Instrumentation
  • Thermocouple Cables (Armored and Unarmored)
  • Thermocouple Compensation and Extension Cables
  • Fiber-Optic Instrumentation Cables 
Miscellaneous Instrumentation
  • Pig Signaling Devices and Pig Doctors
  • Mooring Buoy Hawser Load Monitoring System
  • Annunciators
  • Junction boxes
  • Electrical and Electronics Components For Systems
Tubing and Mounting Materials for Instrumentation